Crydom becomes the first solid state relay manufacturer to get UL certification for 100kA Short Circuit Current Ratings Crydom, an operation of Custom Sensors & Technologies (CST), announces the first solid state relays available on the market with UL approved short-circuit current ratings (SCCR). These relays facilitate industrial control panel builders’ efforts to comply with the new article 409 from NEC and the latest version of UL508A, both request SCCR marking..

Crydom PCB mount solid-state relays reduce panel space requirements while maintaining power capabilities Crydom, an operation of Custom Sensors & Technologies (CST) and North American Leader in solid state relays, announces the most extensive line of standard and custom PCB mount power solid state relays available to the European and Asian markets. These relays offer ratings from 1 amp to 25 amps (forced air) at line voltages up to 660Vac., which...

New Challenges for Industrial Panel Builders The 2005 National Electrical Code (more information) now requires most control panels to be marked with their short-circuit current rating (SCCR). This change affects all industrial control panels (409.110), industrial machinery panels (670.3(A)), and non-residential HVAC equipment rated greater than 60A (440.4(B)). Furthermore, all industrial control panels listed to UL508A must be marked with their SCCR. Supplement SB in...